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authorLinus Torvalds <torvalds@linux-foundation.org>2011-05-23 12:23:20 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-23 12:23:20 -0700
commit99dff5856220a02b8711f2e8746413ea6e53ccf6 (patch)
treed8bae7ccdf8f7ad5221b053bb74a6220df996b3a /include
parentbb74e8ca352eecefdc5c1a9ebab01f18aa2f6f3c (diff)
parentd9a0fbfd7bc5d2c42f0fa9bcbdab62c4942d0388 (diff)
Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
* 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: (48 commits) serial: 8250_pci: add support for Cronyx Omega PCI multiserial board. tty/serial: Fix break handling for PORT_TEGRA tty/serial: Add explicit PORT_TEGRA type n_tracerouter and n_tracesink ldisc additions. Intel PTI implementaiton of MIPI 1149.7. Kernel documentation for the PTI feature. export kernel call get_task_comm(). tty: Remove to support serial for S5P6442 pch_phub: Support new device ML7223 8250_pci: Add support for the Digi/IBM PCIe 2-port Adapter ASoC: Update cx20442 for TTY API change pch_uart: Support new device ML7223 IOH parport: Use request_muxed_region for IT87 probe and lock tty/serial: add support for Xilinx PS UART n_gsm: Use print_hex_dump_bytes drivers/tty/moxa.c: Put correct tty value TTY: tty_io, annotate locking functions TTY: serial_core, remove superfluous set_task_state TTY: serial_core, remove invalid test Char: moxa, fix locking in moxa_write ... Fix up trivial conflicts in drivers/bluetooth/hci_ldisc.c and drivers/tty/serial/Makefile. I did the hci_ldisc thing as an evil merge, cleaning things up.
Diffstat (limited to 'include')
-rw-r--r--include/linux/pti.h42
-rw-r--r--include/linux/serial_core.h6
-rw-r--r--include/linux/serial_reg.h2
-rw-r--r--include/linux/tty.h4
-rw-r--r--include/linux/tty_ldisc.h9
5 files changed, 58 insertions, 5 deletions
diff --git a/include/linux/pti.h b/include/linux/pti.h
new file mode 100644
index 000000000000..81af667bb2d5
--- /dev/null
+++ b/include/linux/pti.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) Intel 2011
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * The PTI (Parallel Trace Interface) driver directs trace data routed from
+ * various parts in the system out through the Intel Penwell PTI port and
+ * out of the mobile device for analysis with a debugging tool
+ * (Lauterbach, Fido). This is part of a solution for the MIPI P1149.7,
+ * compact JTAG, standard.
+ *
+ * This header file will allow other parts of the OS to use the
+ * interface to write out it's contents for debugging a mobile system.
+ */
+
+#ifndef PTI_H_
+#define PTI_H_
+
+/* offset for last dword of any PTI message. Part of MIPI P1149.7 */
+#define PTI_LASTDWORD_DTS 0x30
+
+/* basic structure used as a write address to the PTI HW */
+struct pti_masterchannel {
+ u8 master;
+ u8 channel;
+};
+
+/* the following functions are defined in misc/pti.c */
+void pti_writedata(struct pti_masterchannel *mc, u8 *buf, int count);
+struct pti_masterchannel *pti_request_masterchannel(u8 type);
+void pti_release_masterchannel(struct pti_masterchannel *mc);
+
+#endif /*PTI_H_*/
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 758c5b0c6fd3..a5c31146a337 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -45,7 +45,8 @@
#define PORT_OCTEON 17 /* Cavium OCTEON internal UART */
#define PORT_AR7 18 /* Texas Instruments AR7 internal UART */
#define PORT_U6_16550A 19 /* ST-Ericsson U6xxx internal UART */
-#define PORT_MAX_8250 19 /* max port ID */
+#define PORT_TEGRA 20 /* NVIDIA Tegra internal UART */
+#define PORT_MAX_8250 20 /* max port ID */
/*
* ARM specific type numbers. These are not currently guaranteed
@@ -202,6 +203,9 @@
/* VIA VT8500 SoC */
#define PORT_VT8500 97
+/* Xilinx PSS UART */
+#define PORT_XUARTPS 98
+
#ifdef __KERNEL__
#include <linux/compiler.h>
diff --git a/include/linux/serial_reg.h b/include/linux/serial_reg.h
index 3ecb71a9e505..c75bda37c18e 100644
--- a/include/linux/serial_reg.h
+++ b/include/linux/serial_reg.h
@@ -57,6 +57,7 @@
* ST16C654: 8 16 56 60 8 16 32 56 PORT_16654
* TI16C750: 1 16 32 56 xx xx xx xx PORT_16750
* TI16C752: 8 16 56 60 8 16 32 56
+ * Tegra: 1 4 8 14 16 8 4 1 PORT_TEGRA
*/
#define UART_FCR_R_TRIG_00 0x00
#define UART_FCR_R_TRIG_01 0x40
@@ -118,6 +119,7 @@
#define UART_MCR_DTR 0x01 /* DTR complement */
#define UART_LSR 5 /* In: Line Status Register */
+#define UART_LSR_FIFOE 0x80 /* Fifo error */
#define UART_LSR_TEMT 0x40 /* Transmitter empty */
#define UART_LSR_THRE 0x20 /* Transmit-hold-register empty */
#define UART_LSR_BI 0x10 /* Break interrupt indicator */
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 9f469c700550..d6f05292e456 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -50,6 +50,8 @@
#define N_CAIF 20 /* CAIF protocol for talking to modems */
#define N_GSM0710 21 /* GSM 0710 Mux */
#define N_TI_WL 22 /* for TI's WL BT, FM, GPS combo chips */
+#define N_TRACESINK 23 /* Trace data routing for MIPI P1149.7 */
+#define N_TRACEROUTER 24 /* Trace data routing for MIPI P1149.7 */
/*
* This character is the same as _POSIX_VDISABLE: it cannot be used as
@@ -472,6 +474,7 @@ extern int tty_add_file(struct tty_struct *tty, struct file *file);
extern void free_tty_struct(struct tty_struct *tty);
extern void initialize_tty_struct(struct tty_struct *tty,
struct tty_driver *driver, int idx);
+extern void deinitialize_tty_struct(struct tty_struct *tty);
extern struct tty_struct *tty_init_dev(struct tty_driver *driver, int idx,
int first_ok);
extern int tty_release(struct inode *inode, struct file *filp);
@@ -525,6 +528,7 @@ extern int tty_set_ldisc(struct tty_struct *tty, int ldisc);
extern int tty_ldisc_setup(struct tty_struct *tty, struct tty_struct *o_tty);
extern void tty_ldisc_release(struct tty_struct *tty, struct tty_struct *o_tty);
extern void tty_ldisc_init(struct tty_struct *tty);
+extern void tty_ldisc_deinit(struct tty_struct *tty);
extern void tty_ldisc_begin(void);
/* This last one is just for the tty layer internals and shouldn't be used elsewhere */
extern void tty_ldisc_enable(struct tty_struct *tty);
diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
index ff7dc08696a8..5b07792ccb46 100644
--- a/include/linux/tty_ldisc.h
+++ b/include/linux/tty_ldisc.h
@@ -76,7 +76,7 @@
* tty device. It is solely the responsibility of the line
* discipline to handle poll requests.
*
- * void (*receive_buf)(struct tty_struct *, const unsigned char *cp,
+ * unsigned int (*receive_buf)(struct tty_struct *, const unsigned char *cp,
* char *fp, int count);
*
* This function is called by the low-level tty driver to send
@@ -84,7 +84,8 @@
* processing. <cp> is a pointer to the buffer of input
* character received by the device. <fp> is a pointer to a
* pointer of flag bytes which indicate whether a character was
- * received with a parity error, etc.
+ * received with a parity error, etc. Returns the amount of bytes
+ * received.
*
* void (*write_wakeup)(struct tty_struct *);
*
@@ -140,8 +141,8 @@ struct tty_ldisc_ops {
/*
* The following routines are called from below.
*/
- void (*receive_buf)(struct tty_struct *, const unsigned char *cp,
- char *fp, int count);
+ unsigned int (*receive_buf)(struct tty_struct *,
+ const unsigned char *cp, char *fp, int count);
void (*write_wakeup)(struct tty_struct *);
void (*dcd_change)(struct tty_struct *, unsigned int,
struct pps_event_time *);